change static IP address in NDK 2.24.02.31

Barry Andrews

Hello

I am using TIRTOS 2_12_01_33 with NDK 2_24_02_31 and wish to be able to change the static IP of my Ethernet port on the fly.

I have been able to set the static IP on start up by

bzero(&NetAddr, sizeof(NetAddr));

NetAddr.IPAddr = htonl(IpLocalConfig.IPaddress);

NetAddr.IPMask = htonl(IpLocalConfig.IPnetmask);

strcpy(NetAddr.Domain, (char *)IpLocalConfig.domain);

NetAddr.NetType = 0;

// Add the new static IP entry
CfgAddEntry(hCfg, CFGTAG_IPNET, 1, 0, sizeof(CI_IPNET), (UINT8 *)&NetAddr, 0);


However when I try to change the static IP using

					hCfg = 0;

					binding = BindGetFirst();
					if (binding)
					{
						// get the current static IP entry
						CfgGetEntry(hCfg, CFGTAG_IPNET, 1, 1, &hCfgIpAddr);

						if (hCfgIpAddr)
						{
							if (SystemStatus.DiagState & DIAG_ETHERNET)
								LogDiagMessage("ETH  Change IP Address");
							// Remove the current static IP entry
							CfgRemoveEntry(hCfg, hCfgIpAddr);

							// Add the new static IP entry
							CfgAddEntry(hCfg, CFGTAG_IPNET, 1, 0, sizeof(CI_IPNET), (UINT8 *)&NetAddr, 0);
                                                }
                                    }

I find this works sometimes and not others.

Also I have a PPP session up at the same time and I don't know if this is correctly taking that into account?

How do I correctly determine the existing static route config and replace with a new one?

Thanks in advance for any assistance.

over 10 years ago

0 Barry Andrews over 10 years ago

Genius 3460 points

Worked it out (At least this works for me)

Here is how I did it in case anyone else wants to know

  CI_IPNET 		NetAddr;
  CI_IPNET 		CurrentAddr;
  int	rc;
  int	size;
  HANDLE      hCfgIpAddr;
  HANDLE 			hCfg;


					//  hCfg = CfgGetDefault();
					//  CfgExecute(hCfg, 0);
					hCfg = 0;

					// get the current static IP entry
					rc = CfgGetEntry(hCfg, CFGTAG_IPNET, 1, 1, &hCfgIpAddr);

					// If we already have a route for Ethernet
					if (rc > 0)
					{
						while (rc > 0)
						{
							size = sizeof(CurrentAddr);
							rc = CfgEntryGetData(hCfgIpAddr, &size, (uint8_t *)&CurrentAddr);

							// this was our existing static IP
							if (CurrentAddr.IPAddr == NetAddr.IPAddr)
							{
								// Setup Static IP address
								bzero(&NetAddr, sizeof(NetAddr));
								NetAddr.IPAddr  = htonl(IpLocalConfig.IPaddress);
								NetAddr.IPMask  = htonl(IpLocalConfig.IPnetmask);
								strcpy(NetAddr.Domain, (char *)IpLocalConfig.domain);
								NetAddr.NetType = 0;

								if (SystemStatus.DiagState & DIAG_ETHERNET)
									LogDiagMessage("ETH  Change IP Address");

								// Remove the current static IP entry
								CfgRemoveEntry(hCfg, hCfgIpAddr);

								// Add the new static IP entry
								CfgAddEntry(hCfg, CFGTAG_IPNET, 1, 0, sizeof(CI_IPNET), (UINT8 *)&NetAddr, 0);
								break;
							}
							else
								rc = CfgGetNextEntry(0, hCfgIpAddr, &hCfgIpAddr);
						}
					}
				}

				// We didn't have a static IP
				if (rc <= 0)
				{
					if (SystemStatus.DiagState & DIAG_ETHERNET)
						LogDiagMessage("ETH  Add Static IP Address");
					// Add the new static IP entry
					CfgAddEntry(hCfg, CFGTAG_IPNET, 1, 0, sizeof(CI_IPNET), (UINT8 *)&NetAddr, 0);
				}

This adds my initial static IP on start up and if I change the IP address it removes the old one and replaces with the new value.

0 Kenia Guinto over 9 years ago in reply to Barry Andrews

TI__Expert 7250 points

Glad to see this was resolved.

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change static IP address in NDK 2.24.02.31